Humanities and Sciences together.

What humanity and science both share,
Are the elements water, earth, fire and air.
They are the constituent elements of life,
No matter how they may strife.

Philosophy, literature, engineering and more,
These are all concepts that I do adore.
All of these concepts are linked to another,
As everything in life is bound to each other.

Cancer, Scorpio and Pisces are examples of astrology.
Whereas, C,H,N,O,P,S are illustrations of biology.
After all, it is the compounds that form the anatomy,
Though sometimes a little too irrationally.

Graphene, metals and fuel cells is what I do.
Find my degree within that clue.